chore: update readme

Author: damlayildiz

README.md

@@ -64,6 +64,8 @@ Notes:
 | `polling` | Most apps, easiest setup, predictable behavior | No Expo push packages required  | Checks periodically instead of instantly |
 | `push`    | Apps that need near real-time sync triggers    | Expo push setup and permissions | More setup, may fall back to polling     |
 
+> **⚠️ Push Mode Status**: Push notifications are currently in WIP (work in progress) on iOS. Android support is stable. We recommend using polling mode for iOS apps.
+
 ## Installation
 
 ### 1. Install Required Dependencies